If a main propulsion diesel engine hunts...

Question 1 / 270705eccefa1bacbc34ba4d47721

Question 1 of 270705eccefa1bacbc34ba4d47721

If a main propulsion diesel engine hunts excessively at idle speed, you should __________.

Question 1 of 27070

If a main propulsion diesel engine hunts excessively at idle speed, you should __________.

🔍 Key Concepts

• Diesel engine governing systems and how they control speed at idle • Role of the hydraulic governor and its internal adjustments in preventing speed fluctuations (hunting) • Difference between speed-setting adjustments and stability/damping adjustments in a governor

💭 Think About

• Think about which choice deals with stability of speed (preventing hunting) rather than simply changing the set idle RPM • Ask yourself: if the engine is already at the correct idle speed on average but is surging up and down, which part of the governor is meant to smooth that behavior? • Consider which action is normally used as periodic maintenance versus which is a fine adjustment to correct hunting

✅ Before You Answer

• Identify which option relates to the governor’s damping or compensation feature rather than basic speed setting or load limiting • Ask whether changing the load limit would realistically affect an engine running at no-load idle • Consider whether draining and flushing the governor is a maintenance step for contamination or a tuning adjustment for hunting

Question 1 of 27070

If a main propulsion diesel engine hunts excessively at idle speed, you should __________.

adjust the idle speed control

drain and flush the governor and replace the oil

adjust the compensating needle valve

adjust the load limit

Question 1 / 270705eccefa1bacbc34ba4d47721

Question 1 of 270705eccefa1bacbc34ba4d47721

If a main propulsion diesel engine hunts excessively at idle speed, you should __________.

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Question 1 of 27070

If a main propulsion diesel engine hunts excessively at idle speed, you should __________.